This scenario plays out across California job sites every month. Construction runs on tight margins, multiple stakeholders, and contracts that don't always anticipate every field condition. Construction ranked third among U.S. industries by both the number and cost of legal filings, according to Creditsafe's 2022 State of Credit Risk report, with over 212,000 filings and more than $3.36 billion in losses.
This article breaks down the disputes contractors face most often, the ADR options available before court becomes necessary, when litigation can't be avoided, and how strong contracts prevent conflicts from starting in the first place.
Key Takeaways
- Payment disputes, including liens, stop notices, and bond claims, are California contractors' most common conflict.
- Mediation and arbitration resolve faster than litigation, though lien and bond enforcement still often requires court filing.
- Complex multi-party disputes among owners, GCs, subs, and sureties often require formal litigation to resolve.
- A well-drafted contract with a clear dispute resolution clause prevents more conflicts than any post-dispute strategy.
Common Business Disputes Contractors Face in California
Contractor disputes look different from a typical business disagreement. A retail store fighting with a landlord deals with two parties. A construction project might involve an owner, a general contractor, three or four subcontractors, material suppliers, and a surety, all with different contracts and different statutory protections.
California also gives contractors and suppliers unique payment remedies that don't exist in most other industries. That combination, more parties plus powerful statutory remedies, shapes almost every dispute discussed below.
Payment Disputes: The Most Frequent Contractor Conflict
Payment issues top the list, and California gives unpaid contractors three separate tools to fight back.
Mechanic's liens attach to the improved property itself, giving contractors and suppliers significant negotiating power on private projects. Timing is everything here:
- Direct contractors must record a lien before the earlier of 90 days after project completion or 60 days after the owner records a notice of completion
- Subcontractors and suppliers get a shorter window: 90 days after completion, or 30 days after a notice of completion is recorded
- Once recorded, the lien holder has just 90 days to file a foreclosure action, or the lien loses its force
Stop payment notices work differently. Instead of targeting the property, they freeze undisbursed construction funds. Timing varies by project type:
- Private jobs: enforcement starts 10 days after giving notice and must happen within 90 days after the notice period closes
- Public works: a similar 10-day wait applies, but triggering dates tie to project completion or cessation instead
Bond claims matter most on public projects, where liens aren't available against government-owned property. California's public works law (often called the Little Miller Act) requires a payment bond on contracts over $25,000. Claimants generally have six months after the statutory notice period expires to sue the surety directly.
Contract and Scope Disputes
Beyond payment, disagreements over what work was actually promised cause a steady stream of friction. Arcadis' 2025 Construction Disputes Report ranked owner-directed changes as the third most common cause of construction disputes across North America, behind contract-document errors and misunderstood contractual obligations.
Common triggers include:
- Change order disagreements — one party assumes extra work is covered under the original price, the other expects additional compensation
- Differing site conditions — field conditions don't match what was represented in bid documents, and nobody agreed in advance on who absorbs the cost
- Vague scope language — contracts that don't clearly define deliverables leave room for two reasonable, and conflicting, interpretations
A poorly drafted contract turns a five-minute conversation about an unexpected utility line into a six-figure dispute. That's rarely about bad faith. It's about ambiguity nobody caught before the shovels hit dirt.
Other Common Disputes for Contractors
Beyond payment and scope issues, several other conflict types show up regularly. These disputes usually require construction-specific legal knowledge to resolve well:
- Subcontractor performance and quality disputes — disagreements over whether completed work meets contract specifications
- Construction defect and warranty claims — issues that surface after project completion, sometimes years later
- WBE/MBE/DBE/DVBE certification disputes — ownership-and-control challenges, size protests, or decertification appeals that threaten a contractor's eligibility for public contracts
- Bid protest issues — challenges to how a public agency awarded (or denied) a contract
These specialized disputes intersect with statutory deadlines and agency-specific procedures that general business attorneys rarely encounter.
Alternative Dispute Resolution (ADR) Methods for Contractors
ADR covers any process for resolving a dispute outside of a courtroom. Many construction contracts, especially those built on AIA-style templates, already include arbitration clauses before a dispute even exists. That means the path forward may already be decided the moment you signed.
Negotiation and Mediation
Direct negotiation is the fastest, cheapest option, and it should always be the first move. Two parties talking through a disagreement, sometimes with attorneys drafting the terms, resolves a large share of disputes without any third party involved.
Mediation adds a neutral facilitator when direct talks stall. It's non-binding, meaning neither side is forced to accept a resolution. That makes it particularly useful for preserving an ongoing relationship between a general contractor and a subcontractor who will likely work together again.
Arbitration
When negotiation and mediation don't resolve the dispute, arbitration is often the contractually mandated next step. Arbitration looks more like a private trial. A neutral arbitrator hears evidence and issues a decision. Many construction contracts mandate binding arbitration for disputes above a certain dollar threshold, meaning the arbitrator's ruling is final and enforceable like a court judgment.
The timing advantage is real. The American Arbitration Association's FY2025 data shows a 17-month median time to award for construction arbitration. That's roughly three times faster than the federal court median for smaller claims, and about 1.7 times faster for large-dollar disputes.
There's a wrinkle unique to construction, though. Mechanic's lien enforcement and bond claims sometimes must still go through court even while the underlying contract dispute heads to arbitration.
California Code of Civil Procedure Section 1281.5 allows a claimant to file the lien foreclosure action without waiving arbitration rights. But the claimant must file the proper stay motion within 30 days of the summons and complaint. Miss that window, and the right to compel arbitration disappears.
Carno Law Group represents contractors in both mediation and arbitration proceedings, working to resolve conflicts efficiently while making sure statutory payment rights, like lien and bond deadlines, stay protected throughout the process.
When Litigation Becomes Necessary
ADR doesn't always end the fight. Three scenarios commonly push a dispute into court, even when a contract calls for arbitration first.
- Enforcing statutory payment rights. A mechanic's lien, stop notice, or bond claim generally requires formal court action if the other party refuses to negotiate. Arbitration can resolve the underlying contract dispute, but it doesn't foreclose a lien or force a surety to pay.
- Multi-party disputes. When an owner, general contractor, subcontractor, and surety all have competing claims on the same project, sorting out liability often requires a court's authority to bind everyone at once.
- Public agency bid disputes. Bid protests involving federal agencies or FAR interpretation issues typically follow formal channels like GAO or the Court of Federal Claims rather than informal negotiation.
Litigation protects rights that arbitration alone can't reach, particularly when a lien deadline, bond claim, or bid protest is at stake. Carno Law Group represents contractors and suppliers in these exact disputes, moving fast to preserve rights that expire on strict statutory clocks.
Preventing Disputes: Contract and Communication Strategies
Most disputes trace back to the same root cause: a contract that didn't answer a question clearly enough. Fixing that upfront beats fighting about it later.
Start with an airtight contract. Spell out scope of work, payment terms, and change order procedures in plain language, not left to assumption. Contracts should also anticipate hidden costs and unusual site conditions rather than reacting to them after the fact.
Build in a dispute resolution clause. Every contract should specify:
- Whether mediation, arbitration, or litigation applies to disputes
- The order those steps happen in (mediation before arbitration is common)
- Any dollar thresholds that trigger binding arbitration
Carno Law Group drafts these clauses for clients before disputes ever start.
Put verbal agreements in writing. Follow every verbal change with a same-day email or field memo, then file it with your RFIs and change orders.
Document everything. RFIs, change orders, and daily logs create a paper trail that removes ambiguity if a dispute ever reaches mediation, arbitration, or court. A contractor who can produce a signed change order settles a scope argument in minutes instead of months.
How Carno Law Group Supports Contractors Through Disputes
Carno Law Group focuses on construction litigation for contractors, subcontractors, and suppliers, covering both core payment disputes and specialized matters most general business attorneys don't handle:
- Mechanic's lien law and stop notice claims
- Payment bond claims and bid disputes
- WBE/MBE/DBE/DVBE certification matters
- Government contracts and FAR interpretation issues
The firm serves clients across Orange, Los Angeles, Riverside, San Bernardino, and San Diego Counties. Attorneys represent contractors in ADR proceedings first, then pursue aggressive litigation when negotiation fails to protect payment rights.
If you're facing a payment dispute, scope disagreement, or certification challenge, contact Carno Law Group for a free consultation before statutory deadlines start working against you.
Frequently Asked Questions
Is ADR cheaper than court?
Yes, ADR is typically cheaper because it resolves faster than litigation, and construction arbitration reaches an award in a median of 17 months versus much longer court timelines. Complex lien or bond claims may still require some court involvement.
How do you resolve a business dispute?
Most disputes follow a predictable progression: direct negotiation first, then mediation or arbitration if talks stall, with litigation reserved as a last resort. The right starting point often depends on what your contract's dispute resolution clause requires.
How long does dispute resolution usually take?
Negotiation and mediation can wrap up in weeks. Arbitration typically takes several months to over a year depending on claim size. Litigation, especially for complex multi-party construction disputes, can take a year or more.
What are the four types of dispute?
Contractors typically encounter four categories: contract and scope disputes, delay and performance disputes, quality and defect disputes, and payment-related disputes involving liens, stop notices, or bonds.
What's the difference between a mechanic's lien and a stop notice?
A mechanic's lien attaches to the property itself, creating a claim against real estate. A stop notice instead targets undisbursed construction funds, forcing a lender or owner to withhold payment. Both serve as payment leverage, but they protect different assets.
Disclaimer: This article is for general informational purposes only and is not legal advice. Reading this article or contacting Carno Law Group does not create an attorney-client relationship. An attorney-client relationship is formed only after Carno Law Group has been formally retained.
